About the Crutchfield CK8

Deliver the power your amp deserves
Deliver the power your amp deserves
Crutchfield's 8-gauge amplifier wiring kit contains the wire and hardware necessary to supply power to your amplifier safely, efficiently, and economically. This wiring kit does not include RCA patch cables or speaker wire. You may need to purchase those items separately, in order to complete your installation.
Power ratings and amp efficiency
Most amplifiers come in two distinct "Classes" of technology with different efficiencies and power wire size requirements. Class AB amps typically feature 50% to 60% efficiency, while Class D amps are usually 75% to 80% efficient. This Crutchfield wiring kit was designed to accommodate the energy demands of a Class AB amplifier with a total output of up to 420 watts RMS, or a Class D amp with up to 650 watts RMS output.

Crutchfield wire
Crutchfield wire is made of oxygen-free copper, with no impurities that could raise its resistance to a signal's flow or add interference. Crutchfield wire meets all Consumer Technology Association (CTA-2015) standards for size, resistance, and insulation quality.
Product highlights:
- amplifier wiring kit
- RCA cables and speaker wire not included
- maximum power ratings: Class AB: 420 watts RMS, Class D: 650 watts RMS
- oxygen-free copper wires meet all ANSI and CEA standards
- 17 feet (5.2m) of 8-gauge red power wire with ring terminal
- 3 feet (0.9m) of 8-gauge black ground wire with ring terminal
- 17 feet (5.2m) of 18-gauge blue remote turn-on lead wire
- brass mini-ANL fuse holder and 60A fuse
- assorted hardware
- 6 feet (1.8m) of 8-gauge black split loom
- 8-gauge firewall bushing
- two 22-18-gauge butt connectors
- six wire ties
- warranty: 1 year
- MFR # CK8
What's in the box:
- 17' Length of 8AWG power wire (red translucent jacket and terminated with ring-terminal on one end)
- 3' Length of 8AWG ground wire (black translucent jacket and terminated by a ring-terminal on one end)
- 17' Length of 18AWG remote turn-on wire (blue jacket)
- Fuse holder
- 60A Mini-ANL fuse (installed in fuse holder)
- Firewall bushing
- 2 Butt-connectors
- 6' Length of split loom
- 6 Wire ties
Customer reviews for Crutchfield CK8
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Average review:
4.5 out of 5 starsCustomer photos
This review was collected as part of a promotion
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More details on the Crutchfield CK8

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Features & Dimensions
Power & Ground Wire:
- Gauge: 8 AWG
- Wire Construction: Oxygen Free Copper (735 strands) -*only the ground wire is tinned
- Length: 17' (Power), 3' (Ground)
- Diameter: 0.255"
Terminals:
- Terminal Type: Nickel-plated brass ring-terminal (on Power & Ground wire)
- Terminal Diameter: Outer Diameter = 0.555", Inner Diameter = 0.325"
Fuse:
- Fuse Type: Mini-ANL
- Fuse Size: 60A
- Fuse Holder: External fuse holder (fuse already installed, 4mm and 3mm Allen wrenches are required for installation and are not included)
Remote Turn-On Wire:
- Gauge: 18 AWG
- Wire Construction: Oxygen Free Copper (16 strands)
- Length: 17'
- Diameter: 0.105"
Included Accessories:
- Grommet: 8 AWG firewall bushing
- Butt-connectors: 22-18 AWG butt-connectors (2)
- Loom: 6' length of 8 AWG split-loom
- Wire-ties: 6
Installation Notes:
- RCA cables and speaker wire not included (sold separately)
- Installation tools sold separately
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Customer Q&A
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Amp kit was perfect for what we needed. All cables were long enough and clearly high quality. No issues. We didn't use the wire protection cover but it was nice to have if we needed it.
Dallas from PORTLAND, OR